TRIANGLES

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Across
  1. 3. A TRIANGLE WITH ALL ANGLES LESS THAN NINETY DEGREES
  2. 4. MEASURE OF AN ANGLE
  3. 5. POLYGON WITH THREE SIDES
  4. 6. A TRIANGLE WITH DIFFERENT SIDES
  5. 7. A TRIANGLE WITH TWO SIDES SAME
  6. 9. A TRIANGLE WITH ONE ANGLE EQUAL TO NINETY DEGREE
  7. 10. A TRIANGLE WITH ONE ANGLE MORE THAN NINETY DEGREES
Down
  1. 1. A TRIANGLE WITH ALL SIDES EQUAL
  2. 2. LONGEST SIDE OF A RIGHT ANGLED TRIANGLE
  3. 8. SUM OF TWO INTERIOR OPPOSITE ANGLES